diff --git a/editor/deploy.ts b/editor/deploy.ts
index 6a448402..b029790c 100644
--- a/editor/deploy.ts
+++ b/editor/deploy.ts
@@ -77,7 +77,7 @@ export function deployCoreAsync(resp: pxtc.CompileResult, isCli = false) {
     let rbfBIN = pxt.U.fromHex(rbfHex)
     pxt.HF2.write16(rbfBIN, 4, rbfBIN.length)
 
-    let origElfUF2 = UF2.parseFile(pxt.U.stringToUint8Array(atob(resp.outfiles[pxt.outputName()])))
+    let origElfUF2 = UF2.parseFile(pxt.U.stringToUint8Array(ts.pxtc.decodeBase64(resp.outfiles[pxt.outputName()])))
 
     let mkFile = (ext: string, data: Uint8Array = null) => {
         let f = UF2.newBlockFile()
diff --git a/package.json b/package.json
index f67f64c2..58fe50d2 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
   },
   "dependencies": {
     "pxt-common-packages": "0.17.13",
-    "pxt-core": "3.1.3"
+    "pxt-core": "3.1.4"
   },
   "scripts": {
     "test": "node node_modules/pxt-core/built/pxt.js travis"
diff --git a/sim/visuals/assets/Portsvg.ts b/sim/visuals/assets/Portsvg.ts
index 4f5f9475..bf7d03d0 100644
--- a/sim/visuals/assets/Portsvg.ts
+++ b/sim/visuals/assets/Portsvg.ts
@@ -6,7 +6,7 @@ namespace pxsim.visuals {
     <path id="port_2" data-name="port 2" d="M4.48,0h50V58.93h-50Z" transform="translate(-4.48)" style="fill: #eaeaea"/>
     <path id="port_1" data-name="port 1" d="M9.74,46.49V18.66H26.85V11.75h4.72V2.59H44.49v8.82h5.06V46.49h-8v7.43H38.9V46.41h-2v7.5H34.71v-7.5H32.55v7.5h-2.1v-7.5H28.6v7.5H26.5v-7.5H24.68v7.5H22.22v-7.5H20.54v7.5H18V46.46Z" transform="translate(-4.48)" style="fill: #a8aaa8"/>
     <g id="text10060" style="isolation: isolate">
-      <text id="port_text" transform="translate(22.21 40.2)" style="isolation: isolate;font-size: 16px;fill: white;font-family: ArialMT, Arial">B</text>
+      <text id="port_text" class="user-select-none" transform="translate(22.21 40.2)" style="isolation: isolate;font-size: 16px;fill: white;font-family: ArialMT, Arial">B</text>
     </g>
   </g>
 </svg>`;